8y+5*4=3y+8*2+9y-1

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Solution for 8y+5*4=3y+8*2+9y-1 equation:


Simplifying
8y + 5 * 4 = 3y + 8 * 2 + 9y + -1

Multiply 5 * 4
8y + 20 = 3y + 8 * 2 + 9y + -1

Reorder the terms:
20 + 8y = 3y + 8 * 2 + 9y + -1

Multiply 8 * 2
20 + 8y = 3y + 16 + 9y + -1

Reorder the terms:
20 + 8y = 16 + -1 + 3y + 9y

Combine like terms: 16 + -1 = 15
20 + 8y = 15 + 3y + 9y

Combine like terms: 3y + 9y = 12y
20 + 8y = 15 + 12y

Solving
20 + 8y = 15 + 12y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-12y' to each side of the equation.
20 + 8y + -12y = 15 + 12y + -12y

Combine like terms: 8y + -12y = -4y
20 + -4y = 15 + 12y + -12y

Combine like terms: 12y + -12y = 0
20 + -4y = 15 + 0
20 + -4y = 15

Add '-20' to each side of the equation.
20 + -20 + -4y = 15 + -20

Combine like terms: 20 + -20 = 0
0 + -4y = 15 + -20
-4y = 15 + -20

Combine like terms: 15 + -20 = -5
-4y = -5

Divide each side by '-4'.
y = 1.25

Simplifying
y = 1.25

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